Greedy people won't accept that profit is profit, they have higher aims to secure so they will keep striving, is greed the real enemy here? I don't think so because some times your greed can bring you food fortune, crypto has a way to messing with investors I believe that's why it's better to always take profits, there will be more disappointments than positive results
In making money
you need to rely on your mind
skills and experience
if you constantly rely on luck
then someday it will fail you
therefore if you can earn less and without risk
then it is better to do it